Vacuum filling with standard vacuum pump - LotusTalk - The Lotus Cars Community
 
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post #1 of 3 (permalink) Old 08-01-2013, 11:57 AM Thread Starter
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Vacuum filling with standard vacuum pump

Ok say you are too cheap to buy an air lift thingy and you happen to have a perfectly good vacuum pump in your toolbox. It should be easy to cobble together a system for vacuume filling coolant right?

Is the process as simple as below.

1. drain coolant
2. Seal vacuum pump to overflow tank
3. close off vacuume line and open to coolant

Doest the overflow tank have a vent line? How much of a vacuume is safe to pull? I assume a full deep vacume is too much

Thanks
aschen

Seriously, my car is small
07 Exige-S, "Landshark"
05 Saffron Yellow "bumbleBee", on to a new owner
Also:
84 930 turbo, 06 WRX Wagon
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post #2 of 3 (permalink) Old 08-01-2013, 01:16 PM Thread Starter
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Ok I see online its is about 25" of mercury is the recomended vacuum. So what about the vent line for the overflow bottle. Do you just cap that?

Seriously, my car is small
07 Exige-S, "Landshark"
05 Saffron Yellow "bumbleBee", on to a new owner
Also:
84 930 turbo, 06 WRX Wagon
aschen is offline  
post #3 of 3 (permalink) Old 08-01-2013, 02:15 PM
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Location: San Gabriel, CA
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You have to use the adapter (like cone) so no vacuum leaks through the vent line. Either way, you can safely pull 25" vacuum. I do that all the times, save my work about 1/2 the time. But still have to bleed the air manually from the right front fender liner and the upper hose in the engine bay until no air at all.
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